CN115826266A - Out-of-focus spectacle lens, design method and spectacles - Google Patents

Abstract

The application discloses a defocusing spectacle lens, a design method and spectacles, wherein the defocusing spectacle lens comprises a mother lens, the mother lens comprises an optical center, a first area and a second area, and the first area and the second area are symmetrical points by taking the optical center as a center; a plurality of groups of first micro lenses are arranged in the first region, and the first micro lenses and the mother lens form a first bending region together; a plurality of groups of second micro lenses are arranged in the second area, and the second micro lenses and the mother lens form a second bending area together; the defocus amount of the first dioptric area has a maximum value D _1max And a minimum value D _1min The defocus amount of the second dioptric area has a maximum value D _2max And a minimum value D _2min And satisfies the following conditions: d _2min >D _1min ，D _2max >D _1max . The application makes the lens can carry out targeted defocus compensation to the defocus in different areas under different field angles, and makes the retina periphery of the lens wearer obtain more targeted competitive defocus signal stimulation, thereby promoting the lensIntervention effect on the development of the axis of the eye.

Description

Out-of-focus spectacle lens, design method and spectacles

Technical Field

The application relates to the technical field of eye vision optics, in particular to a defocused spectacle lens, a design method and spectacles.

Background

For the retinal peripheral hyperopic defocus or the retinal peripheral myopic defocus, the amount of defocus formed with the change of the visual line range is completely different, and the change of the amount of defocus appears more conspicuously as the angle of field increases. The existing defocusing spectacle lens mostly adopts a design form of uniform defocusing amount or completely axisymmetric defocusing amount distribution, and the form can not match the change requirements of different defocusing amounts, so that the interference effect of the lens on the eye axis development is seriously influenced.

Disclosure of Invention

The purpose of the invention is as follows: the application provides a defocusing spectacle lens, which aims to solve the problem that the conventional spectacle lens cannot adjust the change of defocusing amount in a targeted manner according to different sight ranges; another object of the present application is to provide a method for designing the above-mentioned out-of-focus spectacle lens; it is another object of the present application to provide spectacles comprising the above-mentioned spectacle lenses out of focus.

The technical scheme is as follows: the application provides a out of focus lens, includes:

the primary mirror comprises an optical center, a first area and a second area, wherein the first area and the second area are symmetrical by taking the optical center as a center;

a plurality of groups of first microlenses are arranged in the first region, the first microlenses are arranged from the optical center to the edge of the mother lens far away from one side of the second region, the first microlenses and the mother lens form a first bending region together, and the defocusing amount of the first bending region is increased along with the increase of the field angle;

a plurality of groups of second microlenses are arranged in the second region, the second microlenses are arranged from the optical center to the edge of the mother lens far away from one side of the first region, the second microlenses and the mother lens form a second refraction region together, and the defocusing amount of the second refraction region is increased along with the increase of the field angle;

wherein the defocus amount of the first refraction area has a maximum value D _1max And a minimum value D _1min The defocus amount of the second dioptric area has a maximum value D _2max And minimum value D _2min Satisfies the following conditions:

D _2min >D _1min ，D _2max >D _1max 。

in some embodiments, the maximum value D _1max The expression of (a) is: d _1max ＝|d _1max -D ₀ L; and/or the presence of a gas in the gas,

the minimum value D _1min The expression of (a) is:D _1min ＝|d _1min -D ₀ l, |; and/or the presence of a gas in the gas,

the maximum value D _2max The expression of (a) is: d _2max ＝|d _2max -D ₀ L, |; and/or the presence of a gas in the gas,

the minimum value D _2min The expression of (a) is: d _2min ＝|d _2min -D ₀ |；

In the formula (d) _2max Represents the maximum refractive power of the second microlens, d _2min Represents the minimum refractive power of the second microlens, d _1max Represents the maximum refractive power of the first microlens, d _1min Representing the minimum refractive power, D, of the first microlens ₀ Represents the average optical power of the optical center.

In some embodiments, the first region and the second region together form a third flex zone; the defocusing amount of the first bending area is larger than that of the third bending area, and the defocusing amount of the second bending area is larger than that of the third bending area.

In some embodiments, the defocus amount of the first dioptric light zone is 1.1 to 50 times of the defocus amount of the third dioptric light zone corresponding to the position of the first dioptric light zone; and/or the presence of a gas in the gas,

the defocusing amount of the second bending area is 2-60 times of the defocusing amount of the position, corresponding to the second bending area, in the third bending area.

In some embodiments, the first microlenses are connected to each other and form an annulus that runs from the optical center to the edge of the mother lens on the side away from the second region; alternatively, the first and second electrodes may be,

the second micro lenses are connected with each other and form an annular zone, and the annular zone is arranged from the optical center to the edge of the mother lens at the side far away from the first area; alternatively, the first and second electrodes may be,

the first microlenses are spaced apart from one another; alternatively, the first and second liquid crystal display panels may be,

the second microlenses are spaced apart from one another; alternatively, the first and second electrodes may be,

the refractive power of the first micro-lens increases or decreases with increasing field angle; alternatively, the first and second electrodes may be,

the refractive power of the second microlens increases or decreases with increasing field angle.

In some embodiments, the first microlenses and the second microlenses are rotationally symmetrically distributed around the optical center, and the defocus amount of the second microlenses in the rotationally symmetric distribution is 1.05 to 3.0 times the defocus amount of the first microlenses; alternatively, the first and second electrodes may be,

the first micro lens and the second micro lens are distributed in an axial symmetry mode by taking the junction of the first area and the second area as an axis, and the defocusing amount of the second micro lens distributed in the axial symmetry mode is 1.01-5.0 times of the defocusing amount of the first micro lens.

In some embodiments, the female mirror includes a first optical surface and a second optical surface disposed opposite the first optical surface;

wherein the first microlens is located on the first optical surface and the second microlens is located on the first optical surface; alternatively, the first and second electrodes may be,

the first microlenses are located on the first optical surface and the second microlenses are located on the second optical surface; alternatively, the first and second electrodes may be,

the first microlenses are located on the second optical surface, and the second microlenses are located on the first optical surface; alternatively, the first and second electrodes may be,

the first microlenses are located on the second optical surface and the second microlenses are located on the second optical surface.

In some embodiments of the present invention, the,

the first optical surface is any one of a spherical surface, a toroidal curved surface and a free-form curved surface; and/or the presence of a gas in the atmosphere,

the second optical surface is any one of a spherical surface, a toroidal curved surface and a free-form curved surface; and/or the presence of a gas in the gas,

the design surface type of the first micro lens is any one of a spherical surface, a toroidal curved surface or a toroidal curved surface; and/or the presence of a gas in the gas,

the design surface type of the second micro lens is any one of a spherical surface, a toroidal curved surface or a toroidal curved surface; and/or the presence of a gas in the gas,

the diameters of the first micro lens and the second micro lens are 0.8-4 mm.

In some embodiments, a maximum value D of defocus amount of the first dioptric area _1max And a minimum value D _1min The maximum value D of the defocus amount of the second dioptric area _2max And a minimum value D _2min Further satisfies:

4.3D≤D _1max less than or equal to 7.0D; and/or the presence of a gas in the gas,

2.5D≤D _1min <4.3D; and/or the presence of a gas in the gas,

4.5D≤D _2max less than or equal to 10.0D; and/or the presence of a gas in the atmosphere,

3.0D≤D _2min <4.5D。

in some embodiments, the present application further provides a method of designing a through-focus spectacle lens, comprising:

providing a mother mirror, wherein the mother mirror comprises an optical center, a first area and a second area which take the optical center as a central symmetry point;

a naked eye sight area is arranged on one side of the primary mirror to ensure that the center of the pupil is just opposite to the optical center;

creating a visual target on one side of the mother lens, which is far away from the naked eye sight area, so that the distance between the visual target and the pupil center is equal, wherein the visual target comprises a central visual target which is right opposite to the optical center and measuring visual targets which are distributed on two sides of the central visual target;

acquiring a field angle according to the position among the central sighting mark, the measuring sighting mark and the pupil center;

according to the field angle, measuring the defocus amount of the naked eye in the first area and the second area, and determining the position of the first area and the second area for compensating the defocus amount;

and arranging a first micro lens at a position for compensating the defocusing amount in the first area, and arranging a second micro lens at a position for compensating the defocusing amount in the second area to obtain the defocusing spectacle lens.

In some embodiments, the central optotype,In the measuring of the position between the sighting mark and the pupil center and the acquisition of the angle of view, the calculation expression of the angle of view is as follows:

wherein w represents a half field angle, r represents a vertical distance between the measurement optotype and a line connecting the center optotype and the pupil center, and L represents a distance between the optotype and the pupil center.

In some embodiments, the measuring naked eye is in the defocus of the first and second regions, the defocus comprising a hyperopic defocus and/or a peripheral astigmatic defocus.

In some embodiments, in determining the position in the first region and the second region where the defocus amount is compensated for, the calculation expression of the position is:

wherein F denotes the distance of the position from the optical center (11), w denotes the half field angle, L ₁ Represents the distance between the parent lens and the pupil center, h represents the sagittal height of the parent lens surface on which the first or second microlens is located, and

wherein R represents the curvature radius of the mother mirror, and y represents the half aperture of the mother mirror.

In some embodiments, the present application further provides an eyeglass comprising the spectacle lens out of focus; or the glasses comprise the out-of-focus spectacle lenses obtained by the design method.

In some embodiments, the glasses comprise two sets of the out-of-focus ophthalmic lenses; in the two sets of out-of-focus spectacle lenses, the first area is an area close to the nasal side, and the second area is an area close to the temporal side.

Has the advantages that: compared with the prior art, the out-of-focus spectacle lens of this application includes: a primary mirror including an optical center and centered on the optical centerA first region and a second region of centrosymmetric points; a plurality of groups of first microlenses are arranged in the first area, the first microlenses are arranged from the optical center to the edge of the mother lens far away from one side of the second area, the first microlenses and the mother lens form a first light bending area together, and the defocusing amount of the first light bending area is increased along with the increase of the field angle; a plurality of groups of second microlenses are arranged in the second area, the second microlenses are arranged from the optical center to the edge of the mother lens far away from one side of the first area, the second microlenses and the mother lens form a second light bending area together, and the defocusing amount of the second light bending area is increased along with the increase of the field angle; wherein the defocus amount of the first dioptric area has a maximum value D _1max And a minimum value D _1min The defocus amount of the second dioptric area has a maximum value D _2max And a minimum value D _2min And satisfies the following conditions: d _2min >D _1min ，D _2max >D _1max . The out-of-focus spectacle lens is through setting up first region and second region for the lens can carry out the pertinence out-of-focus compensation to the out-of-focus volume in different regions under different field angles, and it is more reasonable to let the lens wearer's retina periphery obtain, has more pertinence competitive out-of-focus signal stimulation, thereby promotes the intervention effect of lens to the eye axis development.

The application provides a design method of out-of-focus spectacle lens, comprising the following steps: providing a mother mirror, wherein the mother mirror comprises an optical center, a first area and a second area which take the optical center as a central symmetry point; a naked eye sight area is arranged on one side of the primary mirror to ensure that the center of a pupil is just opposite to the optical center; creating a visual target on one side of the mother lens, which is far away from the naked eye sight area, so that the distances between the visual target and the center of a pupil are equal, wherein the visual target comprises a central visual target which is right opposite to the optical center and measuring visual targets which are distributed on two sides of the central visual target; acquiring a field angle according to the central sighting mark, the position between the measuring sighting mark and the pupil center; according to the field angle, measuring the defocus amounts of the naked eyes in the first area and the second area, and determining the positions of the first area and the second area for compensating the defocus amounts; and arranging a first micro lens at a position for compensating the defocusing amount in the first area, and arranging a second micro lens at a position for compensating the defocusing amount in the second area to obtain the defocusing spectacle lens. The defocused spectacle lens obtained by the design method accurately measures the peripheral hyperopic defocus and/or peripheral astigmatic defocus of the wearer according to different individuals, different eye habits and different peripheral defocuses of the wearer, thereby implementing more reliable personalized hyperopic defocus compensation design, and simultaneously, the arrangement position of the micro lens can be determined according to the arrangement position of the micro lenses created by each visual target, the compensated defocus of each micro lens can be accurately exerted in each field angle after the wearer wears the spectacle lens, both defocus and positive focus exist in the area for arranging the micro lens, so that the two can form competitive defocus, and ametropia caused by the abnormal development of the eye axis is inhibited, and the hyperopic defocus of the first area and the second area is also different according to the different hyperopic defocuses of each field angle, so that the deepening of a refractive cloth caused by the abnormal development of the eye axis can be further inhibited by respectively carrying out the targeted defocus compensation design.

It can be understood that, compared with the prior art, the spectacles provided by the embodiments of the present application have all the technical features and advantages of the above-mentioned out-of-focus spectacle lenses, and the details are not repeated herein.

Drawings

The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.

Fig. 1 is a schematic front view of an out-of-focus spectacle lens provided by an embodiment of the present application;

FIG. 2 is a schematic diagram of a first region and a second region provided in an embodiment of the present application;

FIG. 3 is a schematic diagram of the generation of competitive defocus provided by the embodiment of the present application;

FIG. 4 is a schematic front view of another out-of-focus ophthalmic lens provided by an embodiment of the present application;

FIG. 5 is a schematic front view of another out-of-focus ophthalmic lens provided by an embodiment of the present application;

FIG. 6 is a schematic front view of another out-of-focus ophthalmic lens provided by an embodiment of the present application;

FIG. 7 is a schematic side view of an out-of-focus ophthalmic lens provided by an embodiment of the present application;

FIG. 8 is a schematic diagram illustrating the measurement of the defocus of the primary mirror provided in the embodiment of the present application;

fig. 9 is a schematic position diagram of a first microlens and a second microlens provided in an embodiment of the present application;

reference numerals: 1-mother mirror, 2-optotype, 3-pupil center, 11-optical center, 12-first region, 13-second region, 14-first dioptric region, 15-second dioptric region, 16-third dioptric region, 17-first optical surface, 18-second optical surface, 21-central optotype, 22-measuring optotype, 121-first microlens, 131-second microlens.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It should be apparent that the described embodiments are only a few embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it is to be understood that the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

The applicant finds that according to a plurality of reports for detecting the diopter conditions of children, whether the popular retina periphery hyperopia defocus of the myopic children or the retina periphery myopic defocus which is easy to appear by the hyperopic children, the phenomena of different defocus amounts on the nasal side and the temporal side exist, and the defocus amount difference is more obvious along with the increase of the field angle, but the existing defocus lenses lack the design for pertinently defocusing the different hyperopic defocuses on the nasal side and the temporal side of different field angles of human eyes, so that improvement is needed.

Referring to fig. 1 and 2, a spectacle lens for defocus includes a mother lens 1, the mother lens 1 including an optical center 11 and a first area 12 and a second area 13 having the optical center 11 as a central symmetry point; a plurality of groups of first microlenses 121 are arranged in the first region 12, the first microlenses 121 are arranged from the optical center 11 to the edge of the mother lens far away from the second region 13, the first microlenses 121 and the mother lens 1 together form a first refraction region 14, and the defocusing amount of the first refraction region 14 increases with the increase of the field angle; a plurality of groups of second microlenses 131 are arranged in the second region 13, the second microlenses 131 are arranged from the optical center 11 to the edge of the mother lens far away from the first region 12, the second microlenses 131 and the mother lens 3 together form a second refraction region 15, and the defocusing amount of the second refraction region 15 increases along with the increase of the field angle; wherein the defocus amount of the first dioptric area 14 has a maximum value D _1max And minimum value D _1min The defocus amount of the second dioptric area 15 has a maximum value D _2max And minimum value D _2min And satisfies the following conditions: d _2min >D _1min ，D _2max >D _1max 。

In some embodiments, further referring to fig. 1 and 2, the first region 12 and the second region 13 together form a third dioptric region 16, and the variation of defocus of the third dioptric region 16 is determined by the design profile of the mother lens surface; the defocus amount of the first dioptric light bending area 14 is larger than the defocus amount of the third dioptric light bending area 16, and the defocus amount of the second dioptric light bending area 15 is larger than the defocus amount of the third dioptric light bending area 16. The refractive power of the micro-lenses in the first area 12 and the second area 13 is set according to the difference of hyperopic defocusing of different eyes on the nasal side and the temporal side, the nasal side and the temporal side are divided by taking the vertical axis of the optical center 11 of the spectacle lens as a symmetry axis, the micro-lenses are divided into sectors, one side close to the nose is the nasal side, one side close to the ears is the temporal side, and the sectors are areas corresponding to the optical central angle of 60-180 degrees.

In some embodiments, the first region 12 and the second region 13 may refer to a region near the nasal side and a region near the temporal side of the rear-view mirror, respectively, and the power of the microlenses in the first region 12 and the second region 13 is different according to the specific of far-vision defocus of the human eye in different angles of field on the nasal side and the temporal sideCharacterizing the defocus setting for differentiation, at least to satisfy D _2min >D _1min And D _2max >D _1max Therefore, the temporal defocus amount can be ensured to be larger than the nasal defocus amount, and the defocus amounts of the first refraction area 14 and the second refraction area 15 are increased along with the increase of the field angle, so that the defocus amounts of the microlenses on all sides are increased along with the increase of the field angle from the side close to the optical center outwards, and therefore more reasonable competitive defocus signals can be formed on the periphery of the retina of a wearer, and further occurrence and development of the axes of the teenagers can be interfered more effectively.

In some embodiments, referring to fig. 3, competitive defocus specifically refers to the fact that in a region outside the optical center 11 of a saccade of pupil diameter, an existing incident ray passes through the third refractive region 16 of the parent lens 1 to bring the focus to the retina, forming a positive focus, i.e., the end point of the solid line in fig. 3, through which the wearer can clearly see the front object, while the other rays pass through the first refractive region 14 and the second refractive region 15, and the region outside the retina, i.e., the end point of the dotted line in fig. 3, forms defocus through which the wearer cannot clearly see the front object. Within the same saccade range of the pupil, the vicinity of the positive focus is accompanied by the signal of the out-of-focus image, and the positive focus and the out-of-focus compete with each other, thereby stimulating the self-adaptive development of the eye axis to inhibit the further occurrence of the ametropia of the teenagers.

In some embodiments, defocus is the absolute value of the difference between the refractive power of a single microlens and the average refractive power of the optical center of the parent lens, where the maximum value D is _1max The expression of (a) is: d _1max ＝|d _1max -D ₀ L, |; minimum value D _1min The expression of (c) is: d _1min ＝|d _1min -D ₀ L, |; maximum value D _2max The expression of (a) is: d _2max ＝|d _2max -D ₀ L, |; minimum value D _2min The expression of (a) is: d _2min ＝|d _2min -D ₀ L, |; in the formula (d) _2max Denotes the maximum refractive power of the second microlens 131, d _2min Denotes a minimum refractive power of the second microlens 131, d _1max Denotes the maximum refractive power of the first microlens 121, d _1min Denotes a minimum refractive power, D, of the first microlens 121 ₀ Representing the average power of the optical center 11. The defocusing amount of the first dioptric light bending area 14 and the defocusing amount of the second dioptric light bending area 15 are set in a differentiated mode so as to adapt to the requirements of different sight directions, and the self-adaptive development of the eye axis is achieved through mutual stimulation of defocusing and positive focus.

In some embodiments, to further provide the stimulating effect of competitive defocus, the defocus amount of the first dioptric region 14 is 1.1 to 50 times, preferably 1.1 to 15 times, the defocus amount of the third dioptric region 16 corresponding to the position of the first dioptric region 14; and/or the defocus amount of the second dioptric area 15 is 2 to 60 times, preferably 2 to 20 times, the defocus amount of the third dioptric area 16 corresponding to the second dioptric area 15. When the requirements of the above multiples are respectively met, an overkill effect can be formed at least for the amount of far-vision defocus, the defocus amount ratio of the second refractive area 15 relative to the third refractive area 16 at the same position is slightly higher than that of the first refractive area 14 relative to the third refractive area 16 at the same position, and the requirement that the defocus amount of the second area 13 is larger than that of the first area 12 is further met, so that a more reasonable competitive defocus signal can be formed around the retina of a lens wearer, and the axial growth of the eye can be interfered more effectively.

In some embodiments, the first microlenses 121 or the second microlenses 131 can be closed rings or non-closed rings formed by connecting individual microlenses to each other, and are symmetrically distributed around the optical center 11, or a plurality of bands formed by connecting at least three or more microlenses to each other, and are distributed around the optical center 11; or the individual microlenses may be distributed around the optical center 11 without connecting to each other.

In some embodiments, the first microlenses 121 are connected to one another and form annular zones that run from the optical center 11 to the edge of the parent mirror on the side away from the second region 13; the second microlenses 131 are connected to each other and form an annular zone, which is arranged from the optical center 11 toward the edge of the mother lens on the side away from the first region 12. When the first microlenses 121 and the second microlenses 131 are connected to each other to form a zone, the zone located in the first region 12 and the zone located in the second region 13 may be connected to each other, as shown in fig. 1, when the zones are connected to form a closed zone; or partially connected and partially disconnected, as shown in fig. 4, when the annulus on the side near the optical center 11 has a notch, the annulus is a non-closed annulus as a whole. The annular zones in the first zone 12 and the second zone 13 are connected to form a complete circular annular zone on the mother mirror 1, and may be in other shapes such as oval, triangle, quadrangle, polygon, etc., but the refractive powers of the microlenses in the different zones are set independently.

In some embodiments, after the microlenses are connected to each other to form annular zones, and the annular zones of the first region 12 and the second region 13 are connected to form a closed annular zone, the closed annular zones may be arranged equidistantly or non-equidistantly in the radial direction of the mother mirror 1, specifically, the distance between the annular zones is 0.5 mm, 1 mm, and the like. Non-equidistant alignment specifically means that the distance between two adjacent annuli increases or decreases in disorder.

In some embodiments, the first microlenses 121 are spaced apart from each other, and the second microlenses 131 are spaced apart from each other, as shown in fig. 5, in which case, whether the first microlenses 121 or the second microlenses 131 are disposed independently of each other, the first microlenses 121 and the second microlenses 131 may be disposed in an equidistant or non-equidistant arrangement.

In some embodiments, the first microlenses 121 and the second microlenses 131 can also form stripes, which can be line segment patterns, or curve patterns, as shown in fig. 6, that is, no matter how the first microlenses and the second microlenses are arranged with respect to each other, it is within the protection of the present application as long as the defocus amounts of the lenses for different field angles can be set differently, and the defocus amount of the second area is larger than that of the first area.

In some embodiments, the optical power of the first microlenses 121 increases or decreases with increasing field angle; the refractive power of the second microlenses 131 increases or decreases with increasing field angle to meet the setting requirements for different defocus amounts.

In some embodiments, referring to fig. 1 and 5, the first microlenses 121 and the second microlenses 131 are rotationally symmetric about the optical center 11; the defocus amount of the second microlenses 131 which are rotationally symmetrically distributed is 1.01 to 5.0 times, preferably 1.05 to 3.0 times, and more preferably 1.1 to 2.0 times the defocus amount of the first microlenses 121.

In some embodiments, referring to fig. 1, 4 and 6, the first microlenses 121 and the second microlenses 131 are axially symmetrically distributed about the intersection of the first area 12 and the second area 13, and the defocus amount of the axially symmetrically distributed second microlenses 131 is 1.01 to 5.0 times, preferably 1.05 to 3.0 times, and more preferably 1.1 to 2.0 times the defocus amount of the first microlenses 121.

In some embodiments, referring to fig. 7, the parent mirror 1 includes a first optical surface 17 and a second optical surface 18 disposed opposite the first optical surface 17; wherein the first microlenses 121 are located on the first optical surface 17, and the second microlenses 131 are located on the first optical surface 17; alternatively, the first microlenses 121 are located on the first optical surface 17 and the second microlenses 131 are located on the second optical surface 18; alternatively, the first microlenses 121 are located on the second optical surface 18, and the second microlenses 131 are located on the first optical surface 17; alternatively, the first microlenses 121 are located on the second optical surface 18 and the second microlenses 131 are located on the second optical surface 18.

In some embodiments, the first optical surface 17 is any one of a spherical surface, a toroidal surface, a free-form surface; the second optical surface 18 is any one of a spherical surface, a toroidal curved surface, and a free-form curved surface; the design surface type of the first microlens 121 is any one of a spherical surface, a toroidal curved surface, or a toroidal curved surface; the design surface type of the second microlens 131 is any one of a spherical surface, a toroidal surface, or a toroidal surface; the first and second microlenses 121 and 131 have diameters of 0.8 to 4mm.

In some embodiments, when the oppositely disposed first optical surface 17 or second optical surface 18 is of the spherical type, the third dioptric region 16 has a refractive power outward from the optical center that is the same as the refractive power of the optical center 11 at any point away from the optical center 11; when the first optical surface 17 or the second optical surface 18 which is oppositely arranged is an aspheric surface type, the diopter of the third diopter area 16 is gradually increased or decreased from the optical center to the outside, and the absolute value of the diopter difference between the diopter at least at the position of 20 mm of the radius away from the optical center 11 and the optical center accounts for 5% -20% of the diopter of the optical center; when the oppositely disposed first optical surface 17 or second optical surface 18 is toric, the diopter of the third diopter zone 16 has cylindrical power; when the first optical surface 17 or the second optical surface 18 disposed oppositely is a free-form surface type, the diopter of the third dioptric region 16 has a free-form surface type, and the free-form surface type may be a progressive multifocal design surface type, a non-rotational symmetric design surface type, or the like.

In some embodiments, the maximum value D of the defocus amount of the first dioptric area 14 _1max And a minimum value D _1min The maximum value D of defocus of the second dioptric area 15 _2max And a minimum value D _2min Further satisfies: 4.3D ≤ D _1max ≤7.0D；2.5D≤D _1min <4.3D；4.5D≤D _2max ≤10.0D；3.0D≤D _2min <4.5D. Preferably, 5.5 D.ltoreq.D _1max ≤6.5D；3.0D≤D _1min <3.5D；6.0D≤D _2max ≤8.0D；3.5D≤D _2min <4.0D。

In some embodiments, there is provided a method of designing an out-of-focus spectacle lens, comprising:

providing a mother mirror 1, wherein the mother mirror 1 comprises an optical center 11 and a first area 12 and a second area 13 which take the optical center 11 as a central symmetry point;

a naked eye sight area is arranged on one side of the primary mirror 1 to ensure that the pupil center 3 is just opposite to the optical center 11;

creating a sighting target 2 on one side of the mother mirror 1 far away from the naked eye sight area so as to enable the distance between the sighting target 2 and the pupil center 3 to be equal, wherein the sighting target 2 comprises a central sighting target 21 facing the optical center 11 and measuring sighting targets 22 distributed on two sides of the central sighting target 21;

acquiring the field angle according to the positions among the central sighting mark 21, the measuring sighting mark 22 and the pupil center 3;

according to the field angle, measuring the defocus amounts of the naked eyes in the first area 12 and the second area 13, and determining the positions of the first area 12 and the second area 13 for compensating the defocus amounts;

the first microlenses 121 are disposed at positions in the first region 12 where the defocus amount is compensated, and the second microlenses 131 are disposed at positions in the second region 13 where the defocus amount is compensated, to obtain the out-of-focus spectacle lenses.

In some embodiments, in acquiring the angle of view from the positions between the center optotype 21, the measurement optotype 22, and the pupil center 3, the computational expression of the angle of view is:

where w denotes an angle of view, r denotes a vertical distance between the measurement optotype 22 and a line connecting the center optotype 21 and the pupil center 3, and L denotes a distance between the optotype 2 and the pupil center 3.

In some embodiments, the amount of defocus measured by the naked eye in the first and second regions 12, 13 comprises a distance defocus and/or a peripheral astigmatism defocus.

In some embodiments, in determining the position in the first area 12 and the second area 13 for compensating the defocus amount, the calculation expression of the position is:

where F denotes the distance of the position from the optical center 11, w denotes the angle of view, L ₁ Denotes a distance between the mother mirror 1 and the pupil center 3, h denotes a sagittal height of the first microlens 121 or the second microlens 131, and

wherein R represents the curvature radius of the mother mirror 1, and y represents the half aperture of the mother mirror 1.

In some embodiments, the defocused spectacle lens obtained by the design method of the application accurately measures the peripheral hyperopic defocus and/or peripheral astigmatic defocus of the wearer according to different individuals, different eye habits and different peripheral defocuses of the wearer, so as to implement more reliable personalized hyperopic defocus compensation design, and meanwhile, the arrangement position of the micro-lens can be determined by creating the micro-lens arrangement position according to each visual target, so that each compensated micro-lens defocus can accurately play a role in each field angle after the wearer wears the spectacle lens.

In some embodiments, there is provided an eyeglass comprising two sets of through-focus ophthalmic lenses; in both sets of spectacle lenses, the first zone 12 is the zone near the nasal side and the second zone 13 is the zone near the temporal side.

In some embodiments, the ophthalmic lens can be injection molded from a metal mold or cast molded from a glass mold to a desired prescription power or semi-finished product, and then the required prescription power can be obtained by machining the inner surface of the semi-finished product via a lathe. In some embodiments, the ophthalmic lens may also be formed by a UV light curing process into an ophthalmic lens blank using metal and glass molds followed by machining the surface of the blank via the garage to form the lens desired by the wearer or by a fitting process to form the ophthalmic lens or the ophthalmic lens blank.

In some embodiments, the material of the mother mirror 1 includes a polymer material or an inorganic non-metal material. Wherein, the high molecular material comprises thermoplastic resin or thermosetting resin, and the inorganic non-metallic material comprises glass and the like. The thermoplastic resin includes polycarbonate or polymethyl methacrylate; the thermosetting resin includes any one of acrylic resin, episulfide resin, thiourethane resin, allyl resin, and polyurethane.

In some embodiments, the surface of at least one side of the mother mirror 1 is formed with a coating film including a transparent coating film for increasing the transmittance of the lens, a hard coating film for increasing the durability of the lens, a reflective film for blocking harmful light, an antireflection film for realizing visibility of image, a polarizing film including a color-changing function, or other color-changing film including a material doped with a material sensitive to ultraviolet rays, and the like. The coating film can have different colors, and the visible color under the condition of light reflection can be green, blue, yellow, purple and the like, and can also be other colors.

In some embodiments, the ophthalmic lens is prepared directly by a mold, which may comprise an upper mold base and a lower mold base, the working surface of the upper mold base being concave for molding the first optical surface 17 of the ophthalmic lens and the working surface of the lower mold base being convex for molding the second optical surface 18 of the ophthalmic lens.

In some embodiments, the spectacle lens obtained by the above process can be combined with a spectacle frame to further obtain spectacles, and the shape of the spectacle lens can be round, square, ellipse-like or other special-shaped structures. The shape of the spectacle lens is not limited to a perfect geometric shape, as long as it is substantially the above shape.

Referring to fig. 8 and 9, a method of creating a hyperopic defocus measurement model of human eyes at different angles of view on nasal and temporal sides using a windowing computer optometer, such as Shin-Nippon NVision-K5001 or Grand seiko WAM5500 or other computer optometers capable of measuring the peripheral refraction of human eyes; the measurement model is created as follows:

the parallel straight-line distance of the sighting mark 2 from the human eyes is determined. The linear distance between the pupil center 3 and the optical center 11 of the spectacle lens is taken as the distance between the spectacle eyes and the parallel linear distance between the sighting target 2 and the optical center 11 of the spectacle lens is taken as the object distance, and the measuring condition is taken as the parallel linear distance between the sighting target 2 and the human eyes. Preferably, the distance between the eyes is 25 mm, and the distance between the objects is 4000 mm, so that the distance between the eyes and the visual target is 4025 mm.

Creating the position of the sighting target 2, wherein the sighting target 2 comprises a central sighting target 21 and a measuring sighting target 22, taking fig. 8 as an example, connecting the central sighting target 21 with the pupil center 3, respectively measuring the vertical distance between the sighting target 22 and the connecting line, and calculating the angle of view according to each vertical distance, wherein the calculation formula is as follows:

where w represents an angle of view, r represents a vertical distance between the measurement optotype 22 and a line connecting the center optotype 21 and the pupil center 3, L represents a distance between the optotype 2 and the pupil center 3, and L is 4025 mm.

Each angle of view is calculated as shown in the table below.

r mm	Half field angle w/2
		709.72	10°
1078.5	15°
		1464.98	20°
1876.89	25°
		2323.83	30°
2818.34	35°
		3377.38	40°
4025	45°
		4796.81	50°
5748.3	55°

Based on the above calculation structure, as shown in fig. 8, each view angle schematic diagram in oblique viewing of human eyes is obtained.

In some embodiments, the method for measuring the amount of peripheral hyperopic defocus at different field angles with the naked eye according to fig. 8 is as follows:

using a Grand seiko WAM5500 computer optometry instrument, fixing the head of a measured person on a measuring bracket, and enabling eyes to be parallel to and directly view a central sighting target 21 at a front angle of 0 degrees; the height of the central sighting mark 21 is consistent with the height of the human eyes from the ground;

adjusting the measuring mode of the computer optometry instrument to be an SE mode, namely an equivalent spherical diameter mode; the measuring times are 10-50 times of continuous measurement, and the average value is output;

center diopter measurement: the central sighting target 21 with the front being seen directly by two eyes, the cross in the screen of the computer optometry unit is aligned with the pupil center of the left eyeball, and the confirmation key is pressed, so that the computer system automatically outputs the SE equivalent refraction value, the SPH refraction value and the CYL astigmatism value, and outputs and calculates the SE average refraction value A, the SPH average refraction value B and the CYL average astigmatism value C.

Peripheral diopter measurement:

peripheral diopter measurement at 10 ° half field angle: the measuring sighting target 22 with two eyes directly seeing the right side of the front at 10 degrees, the cross in the screen of the computer optometry instrument is aligned with the pupil center of the left eyeball, the confirmation key is pressed, the computer system automatically outputs the SE equivalent spherical diameter value, the SPH diopter value and the CYL astigmatism value, and outputs the SE average diopter value A ₁₀ SPH average diopter value B ₁₀ CYL mean astigmatism value C ₁₀ ；

The 15 degree half-field angle, 20 degree half-field angle, 25 degree half-field angle, 30 degree half-field angle, 35 degree half-field angle, 40 degree half-field angle, 45 degree half-field angle, 50 degree half-field angle, and SE equivalent diopter values of 55 degree half-field angle, SPH diopter value, and CYL astigmatism value of the right half-field angle sighting mark of the left eye were measured according to the above steps.

Measuring the diopter of the human eye of each half-field angle visual target with the left eye at the nasal side and the temporal side and the diopter of the human eye of each half-field angle visual target with the right eye at the nasal side and the temporal side respectively according to the measuring method and recording; wherein, the calculation of the far-vision defocus amount of the nose side and the temporal side of the human eyes in each field angle comprises the following steps: the distance vision defocus De = SE equivalent average diopter value measured at each view angle-SE equivalent average diopter value a of the central visual standard; or hyperopic defocus Ds = SPH diopter value measured at each viewing angle-SPH diopter value B of the central optotype; and peripheral astigmatism defocus Ce = CYL astigmatism Cn measured at each field angle-CYL astigmatism C of the central optotype; where n is the angle of each half field angle.

In some embodiments, referring to fig. 2, the temporal side is the side of the left or right eye near the ear, and the nasal side is the side of the left or right eye near the nose, with the optical center of the spectacle lens as the axis of symmetry; according to the obtained hyperopic defocus amount of the temporal side of the nose of the two eyes at each half field angle, the multidirectional differentiated defocus spectacle lens which has different hyperopic defocus amounts in different field angles at the nose and the temporal side of the eyes can be designed.

In some embodiments, the pupil diameter of the human eye is generally between 2 millimeters and 5 millimeters.

In some embodiments, referring to fig. 9, the position of each microlens of the ophthalmic lens in the first region 12 and the second region 13 is calculated according to the angle of field of view, the distance between the eyes and the sagittal height of the surface on which the microlens is located on the nasal and temporal sides, and the calculation formula is as follows:

where F denotes the distance of the position from the optical center 11, w denotes the angle of view, L ₁ Represents the distance between the mother lens 1 and the pupil center 3, h represents the rise of the surface of the mother lens 1 where the first micro lens 121 or the second micro lens 131 is located, that is, specifically represents the rise of the surface position of the mother lens where each micro lens is located from the optical center of the mother lens, and

wherein R represents the curvature radius of the mother mirror 1, and y represents the half aperture of the mother mirror 1. The lens-eye distance may be any one of 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, etc., specifically based on the distance from the surface where the micro lens is located to the center of the pupil of the eye.

In some embodiments, the locations of the microlenses of the ophthalmic lens first 121 and second 131 are as shown in the following table.

Half field angle w/2	F mm
		0°	0
10°	4.32
		15°	6.5
20°	8.92
		25°	11.42
30°	14.15
		35°	17.16
40°	20.56
		45°	24.5
50°	29.2
		55°	34.99

The above table shows the positions of the microlenses at each position, such as 15 ° half field angle, 20 ° half field angle, 25 ° half field angle, 30 ° half field angle, 35 ° half field angle, 40 ° half field angle, 45 ° half field angle, 50 ° half field angle, etc., and the defocus amount of each microlens is designed at the position, so that the spectacle lens with multi-directional differentiation can be finally designed, and the defocus lens can be defocused, wherein in different areas of the lens, the refractive power formed by the plurality of microlenses performs a defocus compensation design for pertinently correcting hypermetropic defocus on each field angle of the human eye, so that the hypermetropic defocus at each field angle of the human eye becomes myopic defocus, and after the wearer wears the spectacles, the defocus can be formed in an imaging manner at a position other than the retina, and the defocus forms a positive focus on the mother lens, and the positive focus and the defocus form a competitive signal, thereby stimulating the self-adaptation development of the eye axis to inhibit the further occurrence of the refractive error.

In some embodiments, the present application is not limited to the design method for the nasal and temporal hyperopic defocus and the corresponding position of the spectacle lens where the micro lens is located, and the design method of the present application can also equally divide a plurality of regions for the upper side and the lower side of the human eye or the human eye according to a concentric angle of 10 ° to 180 °, measure the hyperopic defocus of each region and determine the position of the spectacle lens where the micro lens is located according to the corresponding field angle in each region equally divided within the concentric angle, so as to perform targeted and personalized hyperopic defocus compensation design, thereby further inhibiting the further development of the refractive error of the eye in all directions. It is understood that the first and second regions defined herein are only relative concepts, and may correspond to the upper and lower sides of the human eye or divide the human eye equally into a plurality of regions at concentric angles of 10 ° to 180 ° in addition to the regions corresponding to the nasal and temporal sides.

The above provides a defocusing spectacle lens, a design method and spectacles provided by the embodiments of the present application, and specific examples are applied to explain the principle and the embodiments of the present application, and the description of the above embodiments is only used to help understanding the technical solution and the core idea of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.

Claims (15)

1. An out-of-focus ophthalmic lens, comprising:

a parent mirror (1), the parent mirror (1) comprising an optical center (11) and a first region (12) and a second region (13) having the optical center (11) as a central symmetry point;

a plurality of groups of first micro lenses (121) are arranged in the first area (12), the first micro lenses (121) are arranged from the optical center (11) to the edge of the mother lens at the side far away from the second area (13), the first micro lenses (121) and the mother lens (1) form a first bending area (14), and the defocusing amount of the first bending area (14) is increased along with the increase of the field angle;

a plurality of groups of second micro lenses (131) are arranged in the second area (13), the second micro lenses (131) are arranged from the optical center (11) to the edge of the mother lens at the side far away from the first area (12), the second micro lenses (131) and the mother lens (1) form a second bending area (15), and the defocusing amount of the second bending area (15) is increased along with the increase of the field angle;

wherein the defocus amount of the first dioptric area (14) has a maximum value D _1max And a minimum value D _1min The defocus amount of the second dioptric area (15) has a maximum value D _2max And a minimum value D _2min And satisfies the following conditions:

D _2min >D _1min ，D _2max >D _1max 。

2. the spectacle lens of claim 1 wherein said maximum value D is _1max The expression of (a) is: d _1max ＝|d _1max -D ₀ L, |; and/or the presence of a gas in the gas,

the minimum value D _1min The expression of (a) is: d _1min ＝|d _1min -D ₀ L, |; and/or the presence of a gas in the atmosphere,

the maximum value D _2max The expression of (a) is: d _2max ＝|d _2max -D ₀ L, |; and/or the presence of a gas in the atmosphere,

the minimum value D _2min The expression of (a) is: d _2min ＝|d _2min -D ₀ |；

In the formula (d) _2max Represents the maximum refractive power of the second microlens (131), d _2min Represents the minimum refractive power of the second microlens (131), d _1max Represents the maximum refractive power of the first microlens (121), d _1min Represents the minimum refractive power, D, of the first microlens (121) ₀ Represents the mean refractive power of the optical centre (11).

3. A spectacle lens out of focus as claimed in claim 1, characterized in that said first zone (12) and said second zone (13) together form a third dioptric zone (16); the defocusing amount of the first bending area (14) is larger than that of the third bending area (16), and the defocusing amount of the second bending area (15) is larger than that of the third bending area (16).

4. A spectacle lens as claimed in claim 3, characterised in that the defocus amount of the first dioptric region (14) is 1.1 to 50 times the defocus amount of the third dioptric region (16) corresponding to the position of the first dioptric region (14); and/or the presence of a gas in the gas,

the defocusing amount of the second light bending area (15) is 2-60 times of the defocusing amount of the third light bending area (16) corresponding to the position of the second light bending area (15).

5. A spectacle lens out of focus as claimed in claim 1, wherein said first microlenses (121) are connected to each other and form an annulus which runs from said optical center (11) to the edge of the mother lens on the side remote from said second area (13); alternatively, the first and second electrodes may be,

the second microlenses (131) are connected to each other and form an annular zone which is arranged from the optical center (11) to the edge of the mother mirror on the side remote from the first region (12); alternatively, the first and second electrodes may be,

the first microlenses (121) are spaced apart from one another; alternatively, the first and second electrodes may be,

the second microlenses (131) being spaced apart from one another; alternatively, the first and second electrodes may be,

the refractive power of the first microlens (121) increases or decreases with increasing field angle; alternatively, the first and second electrodes may be,

the refractive power of the second micro-lens (131) increases or decreases with increasing field angle.

6. The spectacle lens of claim 1, wherein the first microlenses (121) and the second microlenses (131) are rotationally symmetric about the optical center (11), and the defocus amount of the second microlenses (131) is 1.01 to 5.0 times the defocus amount of the first microlenses (121); alternatively, the first and second electrodes may be,

the first micro lens (121) and the second micro lens (131) are distributed in an axial symmetry mode by taking the junction of the first area (12) and the second area (13) as an axis, and the defocusing amount of the second micro lens (131) distributed in the axial symmetry mode is 1.01-5.0 times of the defocusing amount of the first micro lens (121).

7. A spectacle lens out of focus according to claim 3, characterized in that the parent lens (1) comprises a first optical surface (17) and a second optical surface (18) arranged opposite to the first optical surface (17);

wherein the first microlenses (121) are located on the first optical surface (17) and the second microlenses (131) are located on the first optical surface (17); alternatively, the first and second electrodes may be,

the first microlenses (121) being located on the first optical surface (17) and the second microlenses (131) being located on the second optical surface (18); alternatively, the first and second electrodes may be,

the first microlenses (121) being located on the second optical surface (18), the second microlenses (131) being located on the first optical surface (17); alternatively, the first and second electrodes may be,

the first microlenses (121) are located on the second optical surface (18), and the second microlenses (131) are located on the second optical surface (18).

8. The spectacle lens of claim 7,

the first optical surface (17) is any one of a spherical surface, a toroidal curved surface and a free-form curved surface; and/or the presence of a gas in the gas,

the second optical surface (18) is any one of a spherical surface, a toroidal curved surface and a free-form curved surface; and/or the presence of a gas in the gas,

the design surface of the first micro lens (121) is any one of a spherical surface, a toroidal curved surface or a toroidal curved surface; and/or the presence of a gas in the atmosphere,

the design surface type of the second micro lens (131) is any one of a spherical surface, a toroidal curved surface or a toroidal curved surface; and/or the presence of a gas in the gas,

the diameters of the first micro lens (121) and the second micro lens (131) are 0.8-4 mm.

9. A spectacle lens out of focus as claimed in claim 1, wherein the first dioptric zone (14) has a maximum value D of the amount of out of focus _1max And a minimum value D _1min A maximum value D of the defocus amount of the second dioptric area (15) _2max And a minimum value D _2min Further satisfies:

4.3D≤D _1max less than or equal to 7.0D; and/or the presence of a gas in the gas,

2.5D≤D _1min <4.3D; and/or the presence of a gas in the gas,

4.5D≤D _2max less than or equal to 10.0D; and/or the presence of a gas in the gas,

3.0D≤D _2min <4.5D。

10. a method for designing an out-of-focus spectacle lens as recited in any one of claims 1 to 9, comprising:

providing a parent mirror (1), wherein the parent mirror (1) comprises an optical center (11) and a first area (12) and a second area (13) which take the optical center (11) as a central symmetry point;

a naked eye sight area is arranged on one side of the primary mirror (1) to ensure that the pupil center (3) is over against the optical center (11);

creating a visual target (2) on one side of the mother mirror (1) far away from the naked eye sight area so as to enable the distance between the visual target (2) and the pupil center (3) to be equal, wherein the visual target (2) comprises a central visual target (21) which is over against the optical center (11) and measuring visual targets (22) which are distributed on two sides of the central visual target (21);

acquiring a visual field angle according to the positions among the central sighting mark (21), the measuring sighting mark (22) and the pupil center (3);

according to the field angle, measuring the defocus amount of the naked eye in the first area (12) and the second area (13), and determining the position of the first area (12) and the second area (13) for compensating the defocus amount;

a first microlens (121) is provided at a position in the first region (12) where the defocus amount is compensated, and a second microlens (131) is provided at a position in the second region (13) where the defocus amount is compensated, to obtain the out-of-focus spectacle lens.

11. The design method of the out-of-focus spectacle lens as claimed in claim 10, wherein in acquiring the angle of view according to the position between the central optotype (21), the measuring optotype (22) and the pupil center (3), the calculation expression of the angle of view is:

wherein w represents an angle of view, r represents a vertical distance between the measurement optotype (22) and a line connecting the center optotype (21) and the pupil center (3), and L represents a distance between the optotype (2) and the pupil center (3).

12. A method of designing a spectacle lens with defocus as claimed in claim 10, wherein the measurement of the amount of defocus of the naked eye in the first zone (12) and the second zone (13) comprises the amount of hyperopic defocus and/or the amount of peripheral astigmatic defocus.

13. The method of designing an out-of-focus spectacle lens as claimed in claim 11, wherein in determining the positions in the first area (12) and the second area (13) that compensate for the out-of-focus amount, the computational expression of the positions is:

wherein F denotes the distance of the position from the optical center (11), w denotes the angle of view, L ₁ Represents the distance between the parent mirror (1) and the pupil center (3), h represents the rise of the parent mirror (1) surface on which the first microlens (121) or the second microlens (131) is located, and

wherein R represents the curvature radius of the mother mirror (1), and y represents the half aperture of the mother mirror (1).

14. An eyeglass comprising the spectacle lens of any one of claims 1 to 9; alternatively, the spectacles comprise out-of-focus spectacle lenses obtained by the design method of any one of claims 10 to 13.

15. An eyeglass according to claim 14, wherein said eyeglass comprises two sets of said spectacle lenses out of focus; in the two sets of spectacle lenses, the first region (12) is a region near the nasal side, and the second region (13) is a region near the temporal side.

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